feat(web): cite the measured router lift in the router-off copy

The router-off notices read as "the headline feature is missing" with
no evidence it exists. They now carry the offline measurement (+35%
recall over text-only on MMLongBench) and link docs/results.md, so the
disclaimer doubles as the pointer to the result.

Author: NorthernLightx

web/app/chat.jsx

@@ -38,7 +38,7 @@ function AdvancedPanel({ settings, set, papers, routingAvailable }) {
             { value: "visual", label: "visual", disabled: noRouter, disabledTitle: offTitle },
             { value: "agentic", label: "agentic" }]} />
         {noRouter &&
-        <span className="field-note">visual routing needs the GPU leg — off on this deployment; figure questions still work via page images</span>
+        <span className="field-note">visual routing needs the GPU leg — off on this CPU deployment (offline: +35% recall over text-only); figure questions still work via page images</span>
         }
       </div>
       <div className="field">
@@ -210,7 +210,7 @@ function RetrievalPanel({ turn, highlight, settings, paperTitle, routingAvailabl
           <h4>Routing decision</h4>
           {routingAvailable === false ? (
             <div className="route-card">
-              <span className="cand-src">router off on this deployment — every turn retrieves text-side; figure questions are answered from page images at generation time</span>
+              <span className="cand-src">router off on this CPU-only deployment — offline it measures <b>+35% recall</b> over text-only retrieval on MMLongBench (<a href="https://github.com/NorthernLightx/SpectraRAG/blob/main/docs/results.md" target="_blank" rel="noopener">results</a>). Here every turn retrieves text-side; figure questions read the page images at generation.</span>
             </div>
           ) : (
             <div className="route-card">

web/app/inspection.jsx

@@ -157,7 +157,7 @@ function InspectionView({ settings, papers, routingAvailable }) {
                 {visCands.length
               ? visCands.map((c, i) => <InspRow key={i} c={c} onOpen={setPageItem} />)
               : <div className="retr-empty">{routingAvailable === false
-                ? "Not built on this deployment — the visual leg needs a GPU, so retrieval runs text-side only. Figure questions are still answered from page images at generation time."
+                ? <span>Not built on this deployment — the visual leg needs a GPU. Offline it measures +35% recall@10 over text-only retrieval (<a href="https://github.com/NorthernLightx/SpectraRAG/blob/main/docs/results.md" target="_blank" rel="noopener">results</a>); here retrieval runs text-side and figure questions are answered from page images at generation time.</span>
                 : "No visual candidates passed the gate for this query."}</div>}
               </div>
             </div>

web/app/styles.css

@@ -302,6 +302,7 @@ body {
 .model-row.locked:hover { opacity: .8; background: var(--panel-2); }
 .endpoint-cta { margin-top: 11px; width: 100%; justify-content: center; }
 .endpoint-keystat a { color: var(--accent); }
+.route-card a, .retr-empty a { color: var(--accent); }
 
 /* settings row (now holds New chat) */
 .adv-toggle-row {